CAIRO (Reuters) - A bid for power by Hosni Mubarak's former intelligence chief is an insult to Egypt's revolution that, if successful, would trigger a second nationwide revolt, the Muslim Brotherhood's candidate for Egypt's presidency said. In his first public comments since being nominated by the Brotherhood on March 31, Khairat al-Shater played down fears of a clash between the powerful Islamist movement and the army generals who have ruled Egypt since Mubarak was ousted last year. But he warned the Brotherhood would not back a $3. ...